07/01/22

A party mix is made by adding nuts that sell for ​$2.50 per kg to a cereal mixture that sells for ​$1 per kg. How much of each should be added to obtain 30kg of a mix that will sell for ​$1.90 per​ kg

A party mix is made by adding nuts that sell for ​$2.50 per kg to a cereal mixture that sells for ​$1 per kg. How much of each should be added to obtain 30 kg of a mix that will sell for ​$1.90... more

07/01/22

Traveling equation

A grain barge travels on a river from point A to point B loading and unloading grain. The barge travels at a rate of 10 mph relative to the water. The river flows downstream at a rate of 1 mph. If... more

07/01/22

Probability question Fair die

A fair die is rolled four times. What is the probability that it comes up 5 at least once? Write your answer as a fraction or a decimal, rounded to four decimal places.

07/01/22

Traveling equation

Manuel traveled 7 hours nonstop to​ Mexico, a total of 378 miles. He took a train part of the​ way, which averaged 60​mph, and then took a bus the remaining​ distance, which averaged 30mph. How... more

07/01/22

solve the word problem

Jeff and Kirk can build a​ 75-ft retaining wall together in 4 hours. Because Jeff has more​ experience, he could build the wall by himself 1 hour quicker than Kirk. How long would it take Kirk​ (to... more

06/30/22

Student feild trip

The senior class at high school a rented and filled 5 vans and 3 buses with 90 students. High school b rented and filled 9 vans and 4 buses with 141 students. Each van and each bus carried the same... more

Graphing a cube root function

Graph the function.Plot five points on the graph of the function, as follows. Plot the first point using the x-value that satisfies Plot two points to the left and two points to the right of the... more

06/30/22

what's the answer to 8:4(5+2)

math

06/30/22

g\left(x\right)=4x^{2}-16

if g\left(x\right)=4x^{2}-16 were shifted 9 units to the right and 1 down what would the new equation be?

Another solving a quadratic equation by completing the square: Exact answers

Solve the quadratic equation by completing the square.x^2 - 8x + 2 = 0First, choose the appropriate form and fill in the blanks with the correct numbers.Then, solve the equation. If there is more... more

Another writing equations of lines parallel and perpendicular to a given line through a point

Consider the line y=7x-7Find the equation of the line that is perpendicular to this line and passes through the point (−3,  6)Find the equation of the line that is parallel to this line and passes... more

Another word problem involving the maximum or minimum of a quadratic function

A ball is thrown vertically upward. After t seconds, its height h (in feet) is given by the functionWhat is the maximum height that the ball will reach? Do not round your answer.

06/29/22

How do I classify numbers?

As in integers, irrational numbers, whole numbers and rational numbers?

06/29/22

Revenue function, profit function, and domain

Suppose the demand price for selling out a production run of x DVDs is given by p(x)=-0.0005x2+60 dollars per DVD. Further suppose the weekly cost of producing these DVDs is given by... more

06/29/22

Part 1: Graph piecewise functions from tables and equations.

Isabel’s competition,who sells books and no other products, charges a shipping fee of $1.99 per book plus a fixed fee of $3 for each order. Let x be the number of books purchased and f(x) be the... more

06/29/22

Part 3: Solve a real-world problem using a cube root function.

Once Isabel rented the warehouse space, she decided to post ads on several social media sites to advertise her online bookstore. Let x represent the number of months the ads have been posted.... more

06/29/22

Help with Calculus problem

a) Find f.f '(t) = sec(t)(sec(t) + tan(t)), − 𝜋/2 < t < 𝜋/, f (𝜋/4) = −7f(t) = ???b) Find f.f ''(x) = x^-2, x > 0, f(1) = 0, f(6) = 0f(x) = ???  

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